<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <div>
            <span>姓名:</span>
            <input type="text" v-model="name" />
        </div>
        <div>
            <span>年龄:</span>
            <input type="number" v-model="age" />
        </div>
        <div>
            <span>性别:</span>
            <select v-model="gender">
                <option value="男">男</option>
                <option value="女">女</option>
            </select>
        </div>
        <div>
            <button @click="add">添加/修改</button>
        </div>
        <div>
            <table border="1" cellpadding="10" cellspacing="0">
                <tr>
                    <th>序号</th>
                    <th>姓名</th>
                    <th>年龄</th>
                    <th>性别</th>
                    <th>操作</th>
                </tr>
                <tr v-for="(item,index) in obj" :key="item.id">
                    <td>{{index+1}}</td>
                    <td>{{item.name}}</td>
                    <td>{{item.age}}</td>
                    <td>{{item.gender}}</td>
                    <td>
                        <button @click="del(item.id)">删除</button>
                        <button @click="edit(item.id)">编辑</button>
                    </td>
                </tr>
            </table>
        </div>
    </div>
    <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.14/vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                name: "",
                age: 0,
                gender: '男',
                obj: [
                    { id: 1, name: '1', age: 1, gender: '男' },
                    { id: 2, name: '2', age: 2, gender: '男' },
                ],
            },
            methods: {
                add() {
                    this.obj.push({
                        id: +new Date(),
                        name: this.name,
                        age: this.age,
                        gender: this.gender,
                    })
                    this.name = ''
                    this.age = ''
                },
                del(id) {
                    // console.log(id);
                    this.obj = this.obj.filter(item => item.id == id)
                },
                edit(id) {
                    console.log(id);
                    for (let key in this.obj) {
                        // console.log(this.obj[key].id);
                        // console.log(key);
                        if (id == this.obj[key].id) {
                            // console.log(this.obj[key].name, this.obj[key].age)
                            this.name = this.obj[key].name
                            this.age = this.obj[key].age
                            this.gender = this.obj[key].gender
                        }
                    }
                }
            }
        })
    </script>
</body>

</html>